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The 3 Best Power Flush Toilets for Small Bathrooms (With Subpumps) – Expert Reviews 2026
For small bathroom installations requiring subpumps, you'll find three standout power flush toilets in 2026. The HOROW HWMT-8733U leads with its ultra-compact 25" x 13.4" footprint and efficient 1.6/1.1 GPF dual flush system, while the DeerValley Compact offers a space-saving 24.61" x 12.99" design with water-efficient 1.28/0.8 GPF operation. The 600 Watt Macerator Toilet rounds out the top picks, featuring impressive vertical lift capacity up to 20 feet and horizontal pumping reach of 164 feet, perfect for basement installations. Each model combines modern aesthetics with powerful waste management capabilities, but there's much more to weigh when making your final selection.
Key Takeaways
- HOROW HWMT-8733U leads compact toilet options with 25" x 13.4" dimensions and efficient dual-flush system of 1.6/1.1 GPF.
- The 600W Macerator model offers superior waste management with vertical lift up to 20 feet and horizontal reach of 164 feet.
- DeerValley's Compact Toilet provides ideal 17-inch seat height and space-saving dimensions of 24.61" x 12.99".
- All three models feature soft-close seats and operate at 65 decibels or lower, making them suitable for small spaces.
- Water efficiency ranges from 0.75 to 1.6 GPF across models, with modern glazed surfaces for easy maintenance and cleaning.
HOROW Small Compact One Piece Toilet (HWMT-8733U)
HOROW HWMT-8733U Small Compact One Piece Toilet, Power Dual Flush Toilet For Bathroom...
- Modern Compact Design: This small toilet measures just 25 inches deep by 13.4 inches wide and 28.4 inches high, it is the perfect addition to your small bathroom remodel. The toilet seat is 16.5'' in...
- Easy to Install: This short 1-piece toilet have two big opening holes on the side to fix the toilet much easier. Package includes toilet, soft closing toilet seat, pre-installed flush valve...
- Easy To Clean: The modern toilet's fully skirted trapway design makes it extremely easy to clean. It can be kept clean for a longer time because of using self-cleaning materials. Compare to other...
If you're struggling with limited bathroom space but refuse to compromise on flushing power, the HOROW HWMT-8733U offers an ideal solution. At just 25 inches deep and 13.4 inches wide, this compact one-piece toilet fits snugly into tight spaces while maintaining modern aesthetics. The dual-flush system delivers efficient performance, using 1.6 gallons for full flushes and 1.1 gallons for light flushes.
You'll appreciate the thoughtful design features that make this toilet practical for daily use. The soft-closing seat, made from heavy-duty urea-formaldehyde, supports up to 400 pounds and prevents annoying slams. I've found the fully skirted trapway particularly convenient, as it eliminates hard-to-reach corners during cleaning. Installation is straightforward thanks to two large side openings, and the included wax ring and floor bolts make setup even easier.
Best For: Homeowners with small bathrooms seeking a modern, water-efficient toilet that combines space-saving design with reliable performance.
Pros:
- Compact dimensions (25" x 13.4") make it perfect for tight spaces while maintaining comfort
- User-friendly features including soft-close seat, easy-clean design, and dual flush system
- Excellent water efficiency with dual flush options (1.6/1.1 GPF) and strong customer service support
Cons:
- Some concerns about rim flush strength reported
- 16.5" seat height may be too low for taller individuals
- Limited to 1-year warranty compared to longer coverage offered by some competitors
DeerValley Compact One Piece Toilet with Dual Flush
DeerValley Compact One Piece Toilet for Small Bathrooms with Soft Close Seat 12 Inch Rough...
- Space-Saving Comfort & Efficiency: Designed to perfectly fit small bathrooms, this compact one-piece toilet maximizes available space without compromising on comfort or performance. With a...
- High-Efficiency Dual Flush System: This Modern toilet features a high-efficiency dual flush system, offering two water-saving options: a full flush using 1.28 GPF and a half flush using 0.8 GPF. These...
- Soft-Close & Removable Seat: The premium soft-close toilet seat gently shuts, reducing noise and offering a serene bathroom experience, especially at night. Crafted with durable materials and...
Small bathroom owners seeking a powerful yet compact toilet will find the DeerValley Compact One Piece Toilet an ideal solution. At just 24.61 inches deep and 12.99 inches wide, it's perfectly sized for tight spaces while maintaining comfort with its 17-inch seat height. The oval bowl design and fully skirted base create a sleek, modern appearance that's also practical for cleaning.
You'll appreciate the dual flush system's efficiency, offering 1.28 GPF for solid waste and 0.8 GPF for liquid waste. The ceramic construction, fired at 2246°F, resists stains and maintains its pristine appearance over time. While the included soft-close seat has received mixed reviews, the overall package comes complete with everything you'll need for installation, including floor bolts, a wax ring, and water fittings.
Best For: Homeowners with small bathrooms who want a modern, water-efficient toilet that combines compact design with comfortable height and easy maintenance.
Pros:
- Space-saving design with fully skirted base makes it perfect for tight bathroom spaces
- High-efficiency dual flush system (1.28/0.8 GPF) helps conserve water and reduce utility bills
- Glazed ceramic construction and skirted design make cleaning simple and help maintain appearance
Cons:
- Mixed reviews about the quality of the included soft-close seat
- Relatively heavy at 87.8 lbs, which may make installation more challenging
- Higher price point compared to standard two-piece toilets in the market
600 Watt Compact Macerator Toilet with Pump For Basement Bathroom
Homeowners seeking a powerful basement bathroom solution will find the 600 Watt Compact Macerator Toilet impressive. This dual-flush system combines efficiency with power, using just 0.75 gallons for eco flushes and 1 gallon for full flushes. You'll appreciate its built-in 600W macerating pump that handles both toilet and sink waste, making it a complete solution for your basement needs.
What sets this toilet apart is its impressive pumping capability. It can move waste vertically up to 20 feet and horizontally up to 164 feet, making it perfect for basements and other challenging locations. The compact dimensions of 20.86" x 13.18" x 18.11" mean you can install it almost anywhere, from attics to under-stair spaces. Plus, you'll get convenient features like a soft-closing seat and remote control operation that add modern functionality to this powerful unit.
Best For: Homeowners looking to add a bathroom in basement locations or other areas where traditional plumbing installations aren't feasible due to gravity-flow limitations.
Pros:
- Powerful macerating pump system can move waste vertically up to 20 feet and horizontally up to 164 feet
- Highly efficient dual-flush system uses minimal water (0.75-1 gallon per flush)
- Versatile installation options with compact size and ability to connect to sink drainage
Cons:
- Requires specific PVC fittings that may be harder to source
- Depends on electricity to function, making it vulnerable during power outages
- Higher complexity compared to traditional toilets, potentially leading to more maintenance issues
Factors to Consider When Choosing Power Flush Toilets for Small Bathrooms With Subpumps
Selecting the right power flush toilet for your small bathroom requires careful attention to five key factors that'll determine both function and fit. You'll need to evaluate your available floor space, measuring both width and depth clearances, while considering the pump's power rating of at least 0.5 horsepower for adequate waste removal through your home's plumbing system. When examining these specialized toilets, you'll want to focus on models that combine efficient water usage (typically 1.28 to 1.6 gallons per flush), accessible service points for maintenance, and noise reduction features rated at 65 decibels or lower.
Space and Size Requirements
When planning to install a power flush toilet in a compact bathroom, understanding precise space requirements becomes vital for both comfort and functionality. You'll want to focus on models that measure between 24 to 25 inches in depth, ensuring they'll fit comfortably in your limited space without protruding too far from the wall. I've found that these compact dimensions work particularly well in half bathrooms or under-stair installations.
The toilet's height is another important factor you'll need to take into account for daily comfort. Most power flush models offer a seat height between 16 to 17 inches, which I've observed works well for short to medium-height users. You'll also want to account for the toilet's overall footprint, including any necessary space for the subpump installation.
For tight spaces, you can't go wrong with a fully skirted trapway design. It's not just about aesthetics – this design makes cleaning much easier when you're working with limited room to maneuver. Plus, look for models featuring dual flush systems that use as little as 0.75 gallons per flush, which work efficiently even in smaller plumbing setups.
Pump Power Capabilities
Three essential factors determine the effectiveness of a power flush toilet's pump capabilities in small bathrooms: vertical lift, horizontal distance, and wattage power. You'll need to carefully assess your bathroom's layout, as today's leading models can pump waste vertically up to 20 feet and horizontally up to 164 feet, giving you considerable flexibility in placement options.
When evaluating pump power, I recommend focusing on the wattage rating, which directly impacts performance. A 600-watt macerating pump will efficiently grind waste and move it through your plumbing system, ensuring reliable operation even in challenging installations. You'll find this particularly important when dealing with multiple bathroom fixtures connected to the same pump system.
The connection to your existing plumbing is equally important for effective pump performance. You'll need to verify that your chosen model is compatible with standard PVC piping, typically requiring 1-1/4" or 1-1/2" connections. I've found that dual flush capabilities complement pump power nicely, offering water-efficient options as low as 0.75 gallons per flush while maintaining strong waste removal performance.
Water Usage Efficiency
Building on the pump power considerations, water efficiency stands as a key factor in choosing the right power flush toilet for your small bathroom. Today's power flush models offer dual flush systems that let you choose between a full 1.28 GPF flush and a lighter 0.8 GPF option, depending on your needs. You'll find this feature particularly valuable in conserving water while maintaining effective waste removal.
When you're selecting a power flush toilet, look for models with fully skirted trapways, which not only simplify cleaning but also reduce the amount of water needed for maintenance. The glazed ceramic surfaces of modern toilets resist staining and make cleaning more efficient, cutting down on both water usage and cleaning frequency.
For your small bathroom, you'll want to evaluate compact designs that don't compromise on water-saving capabilities. I've found that the latest models combine space-saving dimensions with enhanced flushing technology, delivering powerful performance while using less water. These units prove that you don't need to sacrifice efficiency for size, as they're engineered to maximize every drop of water used during operation.
Installation Access Points
Proper installation access represents an essential consideration as you plan to fit a power flush toilet with a subpump in your small bathroom. You'll need to carefully assess your bathroom's layout to guarantee there's enough clearance for connecting plumbing lines and maintaining the system. When I evaluate bathroom spaces, I recommend allowing at least 6-8 inches of additional space around the toilet's perimeter for comfortable access to key components.
Before committing to a specific model, you'll want to map out both vertical and horizontal pump requirements. Your subpump might need to elevate waste up to 12 feet vertically in some installations, so confirming adequate space for these connections is vital. Make sure you've got clear access to existing plumbing tie-ins, particularly if you're dealing with standard 3-inch waste lines.
Consider positioning the control panel where you can easily reach it for adjustments and troubleshooting. I've found that mounting controls at approximately 4 feet from the floor provides ideal accessibility. You'll also want to guarantee there's enough room to service or replace the subpump without major bathroom disruption.
Noise Level Control
Since noise can be particularly noticeable in small bathrooms, controlling sound levels should be a top priority when selecting a power flush toilet with a subpump. You'll want to focus on models that combine powerful flushing performance with quiet operation, especially if your bathroom shares walls with bedrooms or living spaces. I've found that dual flush systems operating at 0.75 to 1.0 GPF typically offer the best balance between noise control and effective waste removal.
When evaluating noise levels, you'll need to take into account three key components: the flush mechanism, the pump operation, and the seat design. Modern power flush toilets with fully skirted trapways reduce vibration and operating noise considerably compared to exposed designs. For basement installations, I recommend compact macerator toilets with integrated quiet-running pumps, which won't disturb the living spaces above.
Don't forget to factor in the toilet seat's impact on overall noise levels. Investing in a model with a soft-close seat will eliminate those startling slam sounds that can echo through your home, making your bathroom experience more pleasant for everyone.
Maintenance Space Needs
When planning to install a power flush toilet with a subpump in a small bathroom, you'll need to carefully evaluate the maintenance space requirements. Most modern power flush toilets are designed with compact dimensions, typically measuring 25 inches in depth and 13-14 inches in width, which leaves you enough room for routine maintenance tasks. I've found that these dimensions allow for comfortable access to both the toilet and subpump components during servicing.
You'll want to ascertain there's sufficient clearance around the toilet's base, particularly if you've chosen a model with a fully skirted trapway. While these skirted designs make cleaning easier by eliminating hard-to-reach areas, you'll still need about 15 inches of clearance on each side for proper maintenance access. The removable soft-close seats are a practical feature that I recommend, as they provide quick access for thorough cleaning without requiring excessive space.
When installing your power flush toilet, consider the placement of maintenance components like the dual flush mechanism and water supply connections. You'll need approximately 12 inches of rear clearance to accommodate these elements and ascertain easy access for future repairs or adjustments.
Drainage System Compatibility
Compatibility between your power flush toilet and existing drainage system stands as a essential consideration for small bathroom installations. You'll need to verify that your chosen model's piping requirements match your current setup, particularly when dealing with subpump systems. I've found that most modern power flush toilets require specific PVC pipe dimensions, which must align perfectly with your existing plumbing to prevent costly modifications.
When evaluating drainage compatibility, pay close attention to the toilet's macerating capabilities and pumping direction. Your system should effectively handle both vertical and horizontal waste movement, especially if you're installing in a basement or upper floor. The standard measurements for waste pipes typically range from 3 to 4 inches, but some power flush models may have different specifications.
The flush rate also plays a significant role in system compatibility. While eco-friendly options offering 0.75 GPF can save water, you'll want to verify that your drainage system can maintain ideal flow with lower water volumes. I recommend checking the manufacturer's specifications for minimum pipe slope requirements and maximum discharge distances to guarantee proper waste removal.
Frequently Asked Questions
How Long Does a Power Flush Toilet's Subpump Typically Last Before Needing Replacement?
You can expect your power flush toilet's subpump to last 6-8 years with proper maintenance, though some high-end models can function for up to 10 years. Regular cleaning and descaling will help maximize its lifespan. I've found that usage patterns greatly impact longevity – if you're running the pump 15-20 times daily, you'll likely need to replace it closer to the 5-year mark. Watch for decreased flushing power as the first sign of wear.
Can Power Flush Toilets With Subpumps Be Installed in Multi-Story Buildings?
Like a well-oiled machine, power flush toilets with subpumps can absolutely work in multi-story buildings. You'll need to guarantee your building's plumbing system can handle the increased pressure, typically requiring a minimum of 20-25 PSI per floor. The subpump's installation location is vital – it must be within 6-12 feet of the main stack. You'll also want to check local building codes, as some municipalities have specific requirements for powered toilet systems above ground level.
What's the Average Increase in Electricity Bills When Using Subpump Toilets?
You'll typically see a $2-4 increase in your monthly electricity bill when using a subpump toilet, based on average household usage of 5-6 flushes per person daily. The actual cost depends on your local electricity rates, which range from $0.10 to $0.20 per kWh in most areas. Your subpump's motor (usually 400-600W) only runs for about 10-15 seconds per flush, making it relatively energy-efficient despite its powerful performance.
Are Power Flush Toilets With Subpumps Louder Than Regular Toilets?
Did you know that subpump toilets typically operate at 65-75 decibels, about as loud as your dishwasher? You'll notice they're about 15-20 decibels louder than standard gravity-flush toilets, which run at 45-55 decibels. The extra noise comes from the pump's motor and pressurized water system. If you're concerned about the sound, you can install sound-dampening insulation around the pump or opt for newer models with quiet-technology features.
How Often Should Maintenance Be Performed on Subpump Toilet Systems?
You'll need to perform basic maintenance on your subpump toilet system every 6 months to guarantee peak performance. This includes inspecting seals, cleaning the pump chamber, and checking electrical connections. For more thorough maintenance, schedule annual professional servicing to test the pump's pressure levels, replace worn components, and verify the backup battery system. If you're using your subpump toilet daily, don't skip these maintenance intervals, as prevention is cheaper than repairs.
